- [ ] I have searched the [issues](https://github.com/vueComponent/ant-design-vue/issues) of this repository and believe that this is not a duplicate. ### What problem does this feature solve? selectTree 组件希望增加一个可以点击选择的时候只选择子级 ### What does the proposed API look like? selectTree 组件希望增加一个可以点击选择的时候只选择子级 <!-- generated by issue-helper. DO NOT REMOVE -->
